L-rumors.com got the info about the aperture of the new Panasonic S Full Frame zoom lenses:
24-105mm f/4.0
70-200mm f/4.0
Not surprised to hear that. They surely didn’t look like f/2.8 lenses.
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You can join the new L Full Frame Facebook group if you plan to buy this camera. There you can discuss all features and tests once it’s released!